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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7MC1K2-Auto датащи(PDF) 166 Page - STMicroelectronics |
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ST7MC1K2-Auto датащи(HTML) 166 Page - STMicroelectronics |
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166 / 371 page  Obsolete Product(s) - Obsolete Product(s) On-chip peripherals ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto 166/371 Three registers are used internally to manage the auto-update of the LIN divider (LDIV): ● LDIV_NOM (nominal value written by software at LPR/LPFR addresses). ● LDIV_MEAS (results of the field synch measurement). ● LDIV (used to generate the local baud rate). The control and interactions of these registers is explained in Figure 70 and Figure 71. It depends on the LDUM bit setting (LIN divider update method) Note: As explained in Figure 70 and Figure 71, LDIV can be updated by two concurrent actions: a transfer from LDIV_MEAS at the end of the LIN sync field and a transfer from LDIV_NOM due to a software write of LPR. If both operations occur at the same time, the transfer from LDIV_NOM has priority. Figure 70. LDIV read/write operations when LDUM = 0 MANT(7:0) LDIV FRAC(3:0) LDIV_NOM Baud rate generation Read LPR Write LPFR Update at end of synch field FRAC(3:0) MANT(7:0) LDIV_MEAS FRAC(3:0) MANT(7:0) Write LPR Read LPFR LIN sync field measurement Write LPR Obsolete Product(s) - Obsolete Product(s) |
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